The menu bar at the top of Mathematica notebook disappeared (don't remember which key I pressed). How can this be fixed?

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    $\begingroup$ reference.wolfram.com/language/ref/menuitem/ShowToolbar.html. What Mma version? Try, Alt+W - S. $\endgroup$
    – Syed
    Aug 31, 2021 at 9:30
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    $\begingroup$ If it is just one notebook, I would evaluate CurrentValue[EvaluationNotebook[], WindowElements] = Inherited. That should restore it. If it's all of new notebooks, then swap EvaluationNotebook[] with $FrontEnd. $\endgroup$
    – ihojnicki
    Aug 31, 2021 at 12:32
  • 4
    $\begingroup$ For me pressing F12 worked (you might also have to hold the Fn key). $\endgroup$ Aug 4, 2022 at 2:27
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    $\begingroup$ Usually that happens to me when the bar is closing their kitchen. $\endgroup$ May 18, 2023 at 18:01
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    $\begingroup$ @userrandrand Please take the time to write up your comment of using the F12 button as an answer. That absolutely solved my issue. $\endgroup$
    – kickert
    Sep 15, 2023 at 19:11

2 Answers 2


From the upvotes on my comment, it seems that pressing F12 (the keyboard shortcut for full screen) will solve the issue if you cannot access the toolbar.

Reference: Keyboard Shortcuts documentation.


Go to Top Menu Bar and select consecutively: "Window>Toolbar>Ruler" and "Window>Toolbar>Formatting". You will see the familiar Notebook Bar. Notice that the "Formatting" part is somewhat "not so neat" and needs to be fixed. The default has been in a somewhat bad state for some time.


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